CN110292824A - Dustless production technology at the top of limekiln - Google Patents
Dustless production technology at the top of limekiln Download PDFInfo
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- CN110292824A CN110292824A CN201910581220.0A CN201910581220A CN110292824A CN 110292824 A CN110292824 A CN 110292824A CN 201910581220 A CN201910581220 A CN 201910581220A CN 110292824 A CN110292824 A CN 110292824A
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- limekiln
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D50/00—Combinations of methods or devices for separating particles from gases or vapours
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- Chemical Kinetics & Catalysis (AREA)
- Filtering Of Dispersed Particles In Gases (AREA)
Abstract
The present invention relates to the limekiln flour dust on top control under micro-positive pressure and pressure above working condition, the dustless production on limekiln top is realized in specifically a kind of piecemeal control by production.The technique is administered using wet process and run simultaneously with double set processes of dry treatment, and process is as follows: wet process is administered: the external excessive dusty gas of low temperature generated in the process of running in limekiln top, by the washed tower of induced draft blower withdraws, electric precipitator purification rear discharge up to standard；Dry treatment: when kiln gas excess quantity increase when, open bag-type dust blower aspirate kiln top dedusting multiple line inner manifold kiln gas, through bag filter purify it is up to standard after by kiln gas exhaust blower outlet line be discharged.The present invention is by existing gas purification technique and actual production technique perfect combination, the shortcomings that original technology is unable to operate normally after temperature, humidity variation is overcome, there are the advantages such as the cycle of operation is long, failure rate is low, dust-laden improvement is thorough, operating cost is low, low service work intensity is low.
Description
Technical field
It is specifically a kind of logical the present invention relates to the limekiln flour dust on top control under micro-positive pressure and pressure above working condition
Cross the dustless production that limekiln top is realized to the piecemeal control of production.
Background technique
Large-scale mixing formula mechanical shaft kiln blasts combustion air into kiln from the supply air system of kiln bottom, and kiln top is negative in order to prevent
Air is leak under pressure condition, it is ensured that kiln gas concentration index, using over-pressure control.But over-pressure control has the following problems: 1, lime
The leakage of kiln top dusty gas；2, limekiln is withstood in fill process, a large amount of dusty gas leakages.Dusty gas leakage will cause ring
Border pollution, deteriorates production operation and site environment.
Current each producer takes bag filter as the purification apparatus of limekiln top gas leakage, process extensively
Pipeline is passed through after induced draft blower withdraws, sock filtration purification by the suction point fixed for leakage dusty gas, purified gas up to standard
Body emptying.Bag filter filter bag cracky under high-temperature situation, moisture condensation blocking filter bag, this process process equipment under low-temperature condition
The cycle of operation is short, high failure rate, operating cost are high.
Summary of the invention
Present invention seek to address that existing limekiln top is leaked while dusty gas improvement up to standard, with the organic knot of production technology
It closes, the double set processes of dry method, wet process run the new process for carrying out environmental improvement simultaneously.
The present invention adopts the following technical scheme:
A kind of limekiln top smoke harnessing production technology, which is administered using wet process and double same lucks of set process of dry treatment
Row, process are as follows:
1) wet process administers step: the external excessive dusty gas of low temperature generated in the process of running in limekiln top is taken out by air-introduced machine
Inhale washed tower, electric precipitator purification rear discharge up to standard；
2) it dry treatment step: when kiln gas excess quantity increases, opens in bag-type dust blower suction kiln top dedusting multiple line general pipeline
Portion's kiln gas, through bag filter purify it is up to standard after by kiln gas exhaust blower outlet line be discharged.
Compared with prior art, the present invention overcomes existing gas purification technique and actual production technique perfect combination
The shortcomings that original technology is unable to operate normally after temperature, humidity variation, has that the cycle of operation is long, failure rate is low, dust-laden is controlled
The advantages such as reason is thoroughly, operating cost is low, low service work intensity is low.
Preferred embodiment of the invention:
In step 1), under the production status of limekiln, production control adjusts each limekiln and presses against 100~300Pa, and operation wet process is removed
Dirt system increases each kiln top and takes tolerance self-checking device, takes when in limekiln, cup cap opening takes air valve aperture 100%, charging
Air valve aperture 100%, cup cap down periods take air valve aperture 15~50%, are automatically adjusted according to the valve place value of setting.
In step 2, when limekiln press is beyond 100~300Pa range, dry-dedusting system is run, inside limekiln
Suctions excess gas, reaches the controlling value of limekiln press 100~300Pa of data, while controlling dry method system pressure -1.8
~-2.1KPa avoids increasing production system pumping resistance, controls intake air temperature at 80~150 DEG C, avoids drying hair system filter bag knot
Dew or high temperature damage.
Detailed description of the invention
Fig. 1 is the flow chart of the embodiment of the present invention.
In figure: bag filter 1, scrubbing tower 2, electric precipitator 3, draining pump 4, kiln gas exhaust blower 1, kiln gas exhaust blower two
6, wash water water supply line 7,.
Specific embodiment
With reference to the accompanying drawing 1 and embodiment state the present invention:
Embodiment 1:
A kind of limekiln treating flour dust on top production technology, the present embodiment are related to controlling using the dust that limekiln, furnace are produced
Science and engineering skill；Particularly as the new method for producing for being to provide a kind of limekiln treating flour dust on top.
For the present embodiment in such a way that wet process is administered and the double set processes of dry treatment are run simultaneously, detailed process is as follows:
1) wet process is administered: under the production status of limekiln, production control adjusts each limekiln and presses against 100~300Pa, runs wet process
Dust pelletizing system increases each kiln top and takes tolerance self-checking device (using the double acting operated pneumatic valve for having locator), in lime
Kiln cup cap takes air valve aperture 100%, cup cap down periods to take air valve aperture when taking air valve aperture 100%, charging when opening
15~50%, it is automatically adjusted according to the valve place value of setting.The external low temperature generated in the process of running in limekiln top is excessive to be contained
Dust and gas body, by the washed tower 2 of induced draft blower withdraws, electric precipitator 3 purify it is up to standard after through kiln gas exhaust blower 5 one discharge.Shown in Fig. 1
Wash water water supply line 7 in water in clarification return pipe net, water in wash water water supply line 7 supply scrubbing tower 2 and electricity
Deduster 3, the wash water after carrying out depositing dust washing are sent through draining pump 4 into trench.
2) dry treatment: when kiln gas excess quantity increases, when limekiln press is beyond 100~300Pa range, dry method is run
Dust pelletizing system reaches the controlling value of limekiln press 100~300Pa of data, same time control by limekiln internal suction excess gas
Dry method system pressure processed avoids increasing production system pumping resistance in -1.8~-2.1KPa, controls intake air temperature 80~150
DEG C, avoid drying hair system filter bag moisture condensation or high temperature damage；It opens bag-type dust blower and aspirates kiln top dedusting multiple line inner manifold kiln
Gas, through bag filter 1 purify it is up to standard after by 26 outlet line of kiln gas exhaust blower be discharged.
As shown in Figure 1, the present embodiment bag filter setting 1 is two, scrubbing tower 2 is set as three, and electric precipitator is set
Be set to two, kiln gas row according to circumstances 1 and kiln gas exhaust blower 26 be respectively set to two.
Embodiment 2:
A kind of limekiln treating flour dust on top production technology, the present embodiment are related to controlling using the dust that limekiln, furnace are produced
Science and engineering skill；Particularly as the new method for producing for being to provide a kind of limekiln treating flour dust on top.
For the present embodiment in such a way that wet process is administered and the double set processes of dry treatment are run simultaneously, detailed process is as follows:
1) wet process is administered: under the production status of limekiln, production control adjusts each limekiln and presses against 100~300Pa, runs wet process
Dust pelletizing system increases each kiln top and takes tolerance self-checking device (using the double acting operated pneumatic valve for having locator), in lime
Kiln cup cap takes air valve aperture 100%, cup cap down periods to take air valve aperture when taking air valve aperture 100%, charging when opening
35%, it is automatically adjusted according to the valve place value of setting.The external excessive ash-laden gas of low temperature generated in the process of running in limekiln top
Body, by the washed tower 2 of induced draft blower withdraws, electric precipitator 3 purify it is up to standard after through kiln gas exhaust blower 5 one discharge.It is washed shown in Fig. 1
Water supply scrubbing tower 2 and electric precipitation of the water in water water supply line 7 in clarification return pipe net, in wash water water supply line 7
Device 3, the wash water after carrying out depositing dust washing are sent through draining pump 4 into trench.
2) dry treatment: when kiln gas excess quantity increases, when limekiln press is beyond 300Pa, running dry-dedusting system,
By limekiln internal suction excess gas, reach the controlling value of limekiln press 100~300Pa of data, while controlling dry method system
Pressure of uniting avoids increasing production system pumping resistance in -2.1KPa, controls intake air temperature at 100 DEG C, avoids drying hair system filter bag
Moisture condensation or high temperature damage；It opens bag-type dust blower and aspirates kiln top dedusting multiple line inner manifold kiln gas, purified through bag filter 1
It is discharged after up to standard by 26 outlet line of kiln gas exhaust blower.
Embodiment 3:
A kind of limekiln treating flour dust on top production technology, the present embodiment are related to controlling using the dust that limekiln, furnace are produced
Science and engineering skill；Particularly as the new method for producing for being to provide a kind of limekiln treating flour dust on top.
For the present embodiment in such a way that wet process is administered and the double set processes of dry treatment are run simultaneously, detailed process is as follows:
1) wet process is administered: under the production status of limekiln, production control adjusts each limekiln and presses against 100~300Pa, runs wet process
Dust pelletizing system increases each kiln top and takes tolerance self-checking device (using the double acting operated pneumatic valve for having locator), in lime
Kiln cup cap takes air valve aperture 100%, cup cap down periods to take air valve aperture when taking air valve aperture 100%, charging when opening
15~50%, it is automatically adjusted according to the valve place value of setting.The external low temperature generated in the process of running in limekiln top is excessive to be contained
Dust and gas body, by the washed tower 2 of induced draft blower withdraws, electric precipitator 3 purify it is up to standard after through kiln gas exhaust blower 5 one discharge.Shown in Fig. 1
Wash water water supply line 7 in water in clarification return pipe net, water in wash water water supply line 7 supply scrubbing tower 2 and electricity
Deduster 3, the wash water after carrying out depositing dust washing are sent through draining pump 4 into trench.
2) dry treatment: when kiln gas excess quantity increases, when limekiln press is beyond 300Pa, running dry-dedusting system,
By limekiln internal suction excess gas, reach the controlling value of limekiln press 100~300Pa of data, while controlling dry method system
Pressure of uniting avoids increasing production system pumping resistance in -1.8~-2.1KPa, controls intake air temperature at 80~150 DEG C, avoids doing
Hair system filter bag moisture condensation or high temperature damage；It opens bag-type dust blower and aspirates kiln top dedusting multiple line inner manifold kiln gas, through cloth bag
Deduster 1 purify it is up to standard after by 26 outlet line of kiln gas exhaust blower be discharged.
Claims (3)
1. dustless production technology is pushed up in a kind of limekiln, which is administered using wet process and double same lucks of set process of dry treatment
Row, process are as follows:
1) wet process is administered: the external excessive dusty gas of low temperature generated in the process of running in limekiln top is passed through by induced draft blower withdraws
Discharge after scrubbing tower, electric precipitator purification are up to standard；
2) it dry treatment: when kiln gas excess quantity increases, opens bag-type dust blower and aspirates kiln top dedusting multiple line inner manifold kiln
Gas, through bag filter purify it is up to standard after by kiln gas exhaust blower outlet line be discharged.
2. dustless production technology is pushed up in limekiln according to claim 1, it is characterised in that: process 1) in, limekiln production
Under operating condition, production control adjusts each limekiln and presses against 100~300Pa, runs wet method dedusting system, increases each kiln top and take tolerance
Self-checking device takes air valve aperture 100%, cup cap to close when cup cap opening takes air valve aperture 100%, charging in limekiln
Period takes air valve aperture 15~50%, is automatically adjusted according to the valve place value of setting.
3. according to claim 1 limekiln stated push up dustless production technology, it is characterised in that: process 2) in, limekiln press
When beyond 100~300Pa, dry-dedusting system is run, by limekiln internal suction excess gas, reaches limekiln press data
The controlling value of 100~300Pa, while dry method system pressure is controlled in -1.8~-2.1KPa, it avoids increasing production system pumping resistance
Power controls intake air temperature at 80~150 DEG C, avoids drying hair system filter bag moisture condensation or high temperature damage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910581220.0A CN110292824A (en) | 2019-06-29 | 2019-06-29 | Dustless production technology at the top of limekiln |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910581220.0A CN110292824A (en) | 2019-06-29 | 2019-06-29 | Dustless production technology at the top of limekiln |
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| Publication Number | Publication Date |
|---|---|
| CN110292824A true CN110292824A (en) | 2019-10-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910581220.0A Pending CN110292824A (en) | 2019-06-29 | 2019-06-29 | Dustless production technology at the top of limekiln |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0019443A1 (en) * | 1979-05-21 | 1980-11-26 | Allis-Chalmers Corporation | Method and apparatus for handling and utilizing system off-gas in a pyro-processing system |
| US5451255A (en) * | 1992-07-14 | 1995-09-19 | Cadence Environmental Energy, Inc. | Method for improved manufacture of cement in long kilns |
| CN107583449A (en) * | 2016-01-11 | 2018-01-16 | 项敬来 | A kind of rubbish cracking incineration tail gas processing method |
| CN206996161U (en) * | 2017-05-24 | 2018-02-13 | 福建鸿丰纳米科技有限公司 | A kind of kiln gas purification device for being used to produce nano-calcium carbonate |
| CN208139858U (en) * | 2018-03-15 | 2018-11-23 | 河南亿水源净水材料科技有限公司 | A kind of rotary kiln exhaust gas dust-extraction unit |
-
2019
- 2019-06-29 CN CN201910581220.0A patent/CN110292824A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0019443A1 (en) * | 1979-05-21 | 1980-11-26 | Allis-Chalmers Corporation | Method and apparatus for handling and utilizing system off-gas in a pyro-processing system |
| US5451255A (en) * | 1992-07-14 | 1995-09-19 | Cadence Environmental Energy, Inc. | Method for improved manufacture of cement in long kilns |
| CN107583449A (en) * | 2016-01-11 | 2018-01-16 | 项敬来 | A kind of rubbish cracking incineration tail gas processing method |
| CN206996161U (en) * | 2017-05-24 | 2018-02-13 | 福建鸿丰纳米科技有限公司 | A kind of kiln gas purification device for being used to produce nano-calcium carbonate |
| CN208139858U (en) * | 2018-03-15 | 2018-11-23 | 河南亿水源净水材料科技有限公司 | A kind of rotary kiln exhaust gas dust-extraction unit |
Non-Patent Citations (2)
| Title |
|---|
| 李晓光、宋玉军: "石灰窑窑顶粉尘治理经验", 《纯碱工业》 * |
| 祁东彬: "石灰窑窑顶粉尘治理探索", 《纯碱工业》 * |
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Application publication date: 20191001 |